Nut-lock.



"1. L. PATTERSON.

NUT LOCK.

APPLICATION FILED DEC. lo, T914.

1,1 34,408. Patented Apr. 6, 1915.

5% ZZ( M;

ITI-lu.. WASHINGTON. D. C

described hereinafter.

rinrTnn sTATns TATnNT onirica.

JAMES L. PATTERSON, OF FREEPORT, ILLINOIS, ASSIGNOR 0F ONE-HALF T0 JAMES F. PATTERSON, l0F LEAF RIVER, ILLINOIS.

NUT-LOCK.

Lisanne.

Specification of Letters Patent.

liatented Apr. 6, 1915..

Application led December 10, 1914. Serial No. 876,519.

T0 all whom it may concern:

Be it known that I, JAMES L. PATTERSON, a citizen of the United States, residing at Freeport, in the county of Stephenson and State of Illinois, have invented certain new and useful Improvements in Nut-Locks, of which the following is a specification.

This invention relates to nut-locks and has reference more particularly to that type of such devices which employ a U-shaped member, the arms of which are adapted to be received into slots formed in the threaded faces of the coperating threaded elements for preventing the same from being rela-` tively rotatably moved.

One of the primary objects of my invention is to provide in a nut-locking device of the above character novel means for preventing the U-shaped locking-member from being displaced from its operative position, whereby positive locking of the threaded members against relative rotary movement will be insured.

Another object of my invention is the provision of simple and effective means for locking a nut from rotary movement on a bolt, and such as may be cheaply and economically manufactured.

A further object is to provide in a nutloclring device of the above described character a construction wherein the threaded end of the bolt is shaped in a novel manner to provide for precluding the U-shaped locking-member from being removed and to permit said member to bey easily removed at will by the use of a suitable tool..

Referring to the drawings: Figure 1 is a view in elevation of a nut-locking device embodying my invention; Fig. 2 is a longitudinal view taken on the line 2-2 of Fig. 1; Fig. 3 is a plan view of the locking device; Fig. 4L' is a view in perspective of the nut-locking means in operative position as shown in Fig. l; Fig. 5 is a view in elevation of my invention embodied in another form; and Fig. 6 is a plan view of the modiiication.

From an inspection of the drawings, referring more particularly to Figs. 1, 2, and 3, it will be noted that the bolt and nut designated generally by the reference characters 7 and 8 respectively, are of standard type with the exception of the formation of the threaded end of the bolt, which will be The threaded face of the bolt is formed with longitudinally extending slots 9 diametrically oppositely disposed, and the nut is formed on its threaded face with several pairs of diametrically oppositely disposed slots 11, each pair being adapted to register, or to be igirved into alinement, with the slots kin the A U-shaped member designated by the referencecharacter 12 formed preferably of a strip of Vresilient wire, asis clearly shown in Fig. 2 serves as means adapted to cooperate with the bolt and nut members to hold the same from relative rotary movement. The arm portions of the member 12 may be entered in the alined slots and the said member moved toward the bolt until substantially the full length of its arm portions have been moved into the slots to operative position. The function of the U- shaped member is readily apparent, since by the reception of the arm portions thereof in the alined slots the nut is precluded from turning on the bolt. To insure that this nut-locking means may not be withdrawn, I have provided a novel means for holding the U-shaped member in operative position, which means will now be described.

The lthreaded end of the bolt is formed with a reduced head 13 which is shaped to provide a cam-face designated by the reference character 14. rIhe cam-face extends from a-point in proximity to a plane passing longitudinally through the alined slots, away from the bolt at an angle to said plane and is arranged in the path of the crossportion of the U-shaped member 12. `When said member 12 is being moved to operative position said cross-portion will engage the cam-face and be sprung laterally with yrespect to said plane. At the inner end of the cam-face the head 13 is formed with a recess 15 into which the cross-portion of the member 12 will spring as said member is moved to its operative position. This movement of the said cross-portion is obvious since the cross-portion merely returns to its normal plane from which it has been sprung by forcing it against the cam-face 1-1 during movement to operative position. To facilitate springing the cross-portion of the member 12 laterally have iiattened this portion as is shown clearly in Figs. 1 to 4, making the upper end of said member more resilient and susceptible to lateral movement. After the 'said cross-portion of the member 12 has entered the recess 15v said member Will be precluded from being refV tracted by reason of the cross-portion-abut ting the upper vvallof said recess. From the foregoing itis apparent that the nut- 1 locking memberv 12 ispositively locked from being displaced.

The sides of the head 13 adjacent to the :alined slots are cut aWay forming-shoulders 16. /Vhen it is desired to remove the locking-member 12 any suitable tool (not shown) having a pair of spaced pointed .members Vmay be utilized'for the purpose by inserting said'members in the openings 17 beneath the cup portion of the member 12 and above the shouldersI 16 andY drawn upvvardlylandouts v Wardly with respect to the' recess 15 to' rofV move said cup portion therefrom. p

`In Figsl and 6 I .have 'shown a modified l form of my invention` in Which/.the boltanfd bolt has va reduced headx18'vv 'formed' by cutting away the sides of the bolt adj acent'the alinedslots to form theshoulders 16. The head 18 isslotted longitudinally as at19V to receive the cross-portionfjof the 4U-shaped Y member'- 12,- and acotter-pinf 21"l passing through an aperture inthe end 18 extending crossvvise; of the slot 19v abovethe` 'crossportion-of the member-.12 prevents thesaid f member from being Withdrawn. "Itvvvillbe noted that vthis construction makes provision for permittingatool' to"-be inserted under theeiids ofthe cross-portion of the member V12 abovethe shoulder 16"`for"fWithdravving the said 'memberffrom the'slots. j

1. .Anutlock comprisingv a bolt 'and a nut therefor, each having longitudinal slots diametrically oppositely disposed on vits threaded face Vand being adaptedto register, anda Uo-shaped member thearms of Which are adapted to be received in said slots,.the end portions of the bolt at'the sides thereof adjacent to said slots being cut away to form shoulders and a reducedbody portion intermediate the shoulders, said reduced body portion being shaped to permit the cross-portion ofthe U-shaped member to be disposed in proximity to said shoulders and provided with means located at the outer side ofsaid cross-portion for Preclu'ding'the same `from being moved-,outwardly to Withdraw its arms from the slots.

' 2. A nut-lock comprising a vbolt and a nut i therefor, each having longitudinal -slots dia- Y portion of the bolt being'provided with. a

Cam-fece d SPSd .in the-pathoflsaderQSsf; 5 membervvhenjthesame is being moved toward the end of the vbolt to operative 'posi- ,tion, the cam-face being shapedl to spring said U-shaped vmember laterally With re- ,f spect to said slotsby the engagement of the v cross-portion With the cam-face, the camface terminating'at its inner end in a laterally extending recess ,invvhich the said 1 cross-portion,I is, adapted to locate vand beY prevented from moving outwardly.

adaptedV to be received insaid'slotsfthe end`Y y i A nut-lock comprising abolt and-a nutV`v therefon'the threaded faces ofthe boltand': nut having.. diametrically oppositely.Y dis? posed longitudinal slots 'adaptedftoregister,Y

a U-shaped membertheQarms Vofxvvhichare adapted. to bereoeived. linto said 'registered slots tov prevent the nut from. turning on the bolt, and x meansfv engageable. byjlthe.. cross;

portion'fo'f Vthe Ushaped ,memberfor Vspringingjthe.v same .4 laterally .with .respectliltoY a'Y vplane passing: through saidislots, as the [said memberv is `moved longitudinally to. opera`` tive position.

.-4. A nut-lock comprisingaboltand nut i* therefor, 'the threaded Vffaces of the bolt, and

nut-having diametrically ,oppositely l-dis. posed longitudinalslots adaptedfto register, 'f ajvU-shaped member,thelarmsy ofi'vvhichare adapted to befreceivedintofsaid registered slots to' prevent thenutv from turningfon the o bolt, and a ycam-face at .the threaded endsf 1 the Yboltinclined With'respect. to Jafplane; j passing fthrough lsaid slots andvbeingg-'arlf ranged in the. path off the crossfportion, of

said Ushaped memberWhenfthe,.sameffisl Y moved to operative.v 'position' wherebyV to v spring said member. laterallylvvith respect-KtoV said plane.,

' 5; A .nut-.10de eemprisng l belegt-wing? longitudinal slots diametrically j/oppo'sitely disposed on fits'threadedface, and haying at its threaded end a" cam-faceeXtendingfrom a point in proximityto a plane.pas'singI loirgitudinallyy through said slots, away. from' theboltatan .angle to said plane, a nut formed on itsthreadedfacewith longitudi.A

nal slots adapted t register ivithjthose on the bolt, and afUshaped member'thearmslio of v'vhich arek adapted ltobe enteredinsaid i registered slotsA and g be moved .longitudil. nally Vtherein .to operativejjpsition, such movement yof theV Urshaped; member bringe ing' 'the cross-portionthereof A into engage--v ment with said" Vcam-face whereby 'tol'mo've the cross-portion laterally With respect .toU said plane, and means,permittingsaidcrossportion to be'retracted laterally andlfor precludmgl the :cross-portion frombeingretracted longitudinally of the bolt. f E

6.v A nut-lock comprising a bolt-and a therefor, each having longitudinallyV eX-` tending slots diametrically oppositelydisv roo posed on its threaded face adapted to register, a U-shaped member, the arms of Which are adapted to enter said registered slots for locking the nut from turning on the bolt, the threaded end of the bolt being cut away on one of its sides adjacent to one of its said slots thereby forming a reduced end on the bolt, said reduced end being shaped to permit the cross-portion of the U-shaped member, When said member is moved longitudinally on the bolt to effect locking of the nut, to be moved past and disposed Within the said end of the bolt, and said reduced end being provided with means at the outer side of said cross-portion for precluding removal of the U-shaped member from the slots, the said cut-away portion of the bolt affording access to the underside of the cross-portion of the U-shaped member for drawing said member from the slots.

JAMES L. PATTERSON. Witnesses:

JOHN F. MCCANNA, DELLA ATKINSON.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

